Finite element software is adopted to analyze the effect of joint width and strength of joint-filling concrete upon the plane rigidity of the floor.

Some geometric and material variables of laminated composites such as orthotropic parameter,out of plane stiffness,and span to thickness ratio are considered for their influence on behavior of composite plates subject to impact load.

Through the comparison of the force property of anchor plate under different bolt diameter,bolt spacing,it discusses the relation between anchor plate thickness,bolt diameter and spacing as well as the thickness that should be taken to guarantee the stiffness that is out of the surface of anchor plate.

MD simulations on the interaction between carbon nano-cones and rigid plane;

The modes of structural optimum design of plane frames are established based on the component reliability.

The shear forces and the bending moments of the plane frame are computed,and the shear and the moment diagrams are constructed,making use of the relations among the intensity of load,the shear force and the bending moment,and the relations between the load and the internal force at the boundary.

Taking the sectional area and the bending moment of inertia as variables for each beam element, the plane frame will possess a stiffness matrix containing parameters.